Data/hora: 06/06/2024 11:06:42

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Resistance of stored-product insects to phosphine	
Autores: 	Pimentel,Marco Aurélio Guerra; Faroni,Lêda Rita D'Antonino; Batista,Maurílio Duarte; Silva,Felipe Humberto da.	
Data: 	2008-12-01	
Ano: 	2008	
Palavras-chave: 	Rhyzopertha dominica; Fumigant resistance; Respiration rate.	
Resumo: 	The objectives of this work were to assess phosphine resistance in insect populations (Tribolium castaneum, Rhyzopertha dominica, Sitophilus zeamais and Oryzaephilus surinamensis) from different regions of Brazil and to verify if the prevailing mechanism of phosphine resistance in these populations involves reduced respiration rates. Sixteen populations of T. castaneum, 15 of R. dominica, 27 of S. zeamais and eight of O. surinamensis were collected from 36 locations over seven Brazilian states. Each population was tested for resistance to phosphine, based on the response of adults to discriminating concentrations, according to FAO standard method. For each insect species, the production of carbon dioxide of the most resistant and of the most susceptible populations was inversely related to their phosphine resistance. The screening tests identified possible phosphine resistant populations. R. dominica and O. surinamensis were less susceptible to phosphine than the other two species. The populations with lower respiration rate showed a lower mortality at discriminating concentration, possibly related to a phosphine resistance mechanism. Phosphine resistance occurs in stored-product insects, in different regions of Brazil, and the resistance mechanism involves reduced respiration rate.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008001200005	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2008001200005	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.43 n.12 2008	
Fonte: 	info:eu-repo/semantics/openAccess